Improvement in churns



| IUIMHLMHHUUUI Witnesses, Inventor,

GEORGIE iviCcLo'rHLaN, or cHARIToN, IOWA.

Letters Patent No. 106,848, dated August 3 0, 1870.

IMPROVEMENT IN' CHURNS.

The Seh-eddie referred to in these Letters Patent and making part of thesame.

To all whom tt may-concern:

Be it knownthat I, Geenen H. McGLorHLEN, of Chari'toi, in thccounty ofLucas and State of Iowa, have inventeda new and usefulImprovement inGhurn; and I- do herebyv declare that the following is a full and exactdescription of the same, reference beinghad to the accompanying drawingand to the letters of reference mai-lied thereon. 1

This invention relates to that class of churns which hasvertically'moving dashers operated by means of a pitman and gearing, andconsists in certain details of construction, which will be fullydescribed hereinafter. In the drawing a side elevation of my improvedchurn is shown with the churn proper in section.

To enable others skilled in the art to make and use my invention, I willnow proceed to describe fully its Vconstruction and manner of operation.

A A `represent a frame, constructed of suitable uprights andcross-beams, which form bearings for the gearwheel a and pinion a. l

The former is provided with a crank-handle, by means of which itreceives motion, and the latter with a crank-shaft, by means of which itis connected to the pitman by an intermediate wrist-pin, as shown.A

This wrist-pin b is provided with acollar, b', which incloses thecrank-shaft Zand is secured thereto by means of pin, as shown, thecrank-shaft beingv provided with a series of orifices fml the purpose ofpermitting the wrist-pin to bev adjusted for a greater or lesser lengthof' stroke. C represents the'pitman, which is provided with an eye atitslower end, which ts upon the wrist-pin and is secured iuplace by meansof a-spring pin,as shownjl Its upper end` is bent and inserted into anoriiice inthe upper end of the shaft D, being secured there by means ofa pin passed through its end.

The shaft D moves in suitable bearings in the frame. Its lower end isprovided with a tubehaving a threaded orifice and set-screw,'as shown.

E represents the dasher-rod, which is made square atv its lower end,and'provided with blades d d, which are inclined from a horizontalplane, as shown.

F represents the churn, which is of the usual tapering cylindrical form.

'The operation is as follows: The churn having been supplied with cream,the dasher-rod is connected to the tube on the shaft D b v means of thesetscre\v, and motion is communicated to the gearing. vBy this means arapid vertical motion is given to the dasher by means of the pitmanaud-its connections, and the cream is, consequently, violently agitated.

By means of the collar upon the wrist-pin the length ofthe stroke iseasily regulated.

The churn as a whole is simple eiiective in action.

Having thus fullydescribed my invention,

\Vhat VI claim as new, and desire to secure by Lett'ersPatent of theUnit-ed States, is-

The arrangement of the parts described, to wit, the frame, gearing, adjust-able wrist-pin, pitrnamshaft, with tube and set-screw, dasher, andvessel, as and for the purpose described.

This specification signed and witnessed this 23d day of May, 1870.

lVitnesses: GEORGE H. MCGLOTHLEN.

G.- BALDWIN, Jol-IN JACKLEY.

in" construction and

